Railway buffing structure



Aug. 13, 1935.

E. G. HALLQUIST RAILWAY BUFFING STRUCTURE Filed Aug. 29, 1952 PatentedAug. 13, 1935 N UNITED ESTATES 4PATEDVI OFFICE nAmWAYfBUFFmG STRUCTUREEinar G. Hallquist, Edwardsville, Ill., assignor to General SteelCastings Corporation, Granite City, Ill., a corporation of DelawareApplication Augt 29, 1932, serial No. 630,825

11 Claims.` (Cl. 213-222) This invention relatesto buing .devicesforming a part of the end constructionof railway vehicles.-

It is customary at present to provide railway passenger cars, inparticulanat each end witha bulng device including a buifer beam forming`a part of or spaced from the car end sill, and a buffer plate supportedfrom the buffer beam `by means of side buffer stems slidably mounted inthe beamwith their outer ends pivoted to the plate. A center `bufferstem abuts thecentertof the buffer plate and suitable springs "thrusthall the stems outwardly. The center and side stems areusually `ofrectangular section to provide a flat bottom surface and` pass throughsimilarly shaped perforations, or pockets, in theobuffer beam. Thesepockets are provided with suitable wearing blocks whichdirectlyysupportthe ,buffer stems, and the side pockets aremadensomewhat wider than the side stems in order to accommodate`movement of the side stems towards each other tinuous clanking noisewhich is highly objectionable topassengers near the end of the car.

The main object of the present invention is to ,provide a buing deviceof the type referredv to in which the buffer stems pass through `closelyfitting bearings in the buffer beam' and transverse movement of the sidebuffer stems relative Ito vthe b uier beam is eliminated. Y

Another object is to simplifyfthe construction of this ltype of buflingdeviceby utilizing round stems` and bearings therefor `which are easier'and consequently more` economical" to` manufacture than rectangularbearings.

' Ihese objects and others hereafter appearing are attained by thestructures illustrated in the accompanying drawing in which- Figure 1 isa top view of a railway car platform I illustrating the invention.

Figure 2 is a fragmentary top view of the same showing the buffer platein dilferent positions.

Figures 3 and 4 are longitudinal sections taken on the correspondingsection lines of Figure 1.

Figure 5 is an end view of the platform with the ybufling mechanismremoved.

Figures 6 and 7 are detail transverse sections taken on lines 6 6 andrespectively, of Figure 1. Y

,Thernovel bufng device in the figures is applied to a car end platformincluding a box-like end sill and buffer beam 3, side members 2, andintermediate'and central longitudinal members 4 and 5, the latterforming draft sills having lugs 22 and ribs 23 for mounting the draftgear (not shown). Mounted on the upper surface of the .I buffer beam isa` threshold plate 6 which projects `outwardly from the beam. The spacesbetween various platform sills and transoms are closed by suitableflooring plates I.

` Adjacent the beam 3 is a buffer plate 'I having an angle 8 secured tothe side thereof and a plate 9 at `the top which extends beneath thethreshold plate 6. The buffer plate is supported by means of side bufferstems I and I I which extend 1 through pockets |9a in the buffer beam,side buffer springs I2, and transverse members |3. The

buffer beamis reinforced by vertical webs 26 and 2`| andhorizontal webs28, which webs form a support for the coupler carrier, webs 2l beingextensions of intermediate sills 5.

Mounted between the longitudinal members 31,

Vis a friction buffing device I4 having a front follower I 5 abuttingthe center buffer stem I6 which extends through pocket |8a in the bufferbeam Vand abuts a bearing on the buffer plate angle 8 but is notpivotally connected thereto.

Both the center and side stems are preferably of cylindrical section, asin Figures 6 and 7, and

ythese pass through closely fitting cylindrical bearings I8 and I9 inthe buffer beam. The bearings IB and I9 are preferably of hardened steelto most eiectually resist wear.

The side buffer stem I0 is pivoted at its outer end directly tothe'buffer `plate near one end thereof. Near the other end ofthe platealink 2| is pivoted to a bracket 24 on the buffer plate and swingable:horizontally relative thereto. The corresponding side buffer stemispivoted to the other 'end oflink 2|. During swiveling :gofwthej bufferbeam, as in Figure 2, the link` 2| may Swing inwardly to compensate forthe decreased distance between pivot` connections 20 and 2| and avoidtransverse movement of stems I0 and The side buffer stems aresusceptible to longitudinal movement only, so that it is unnecessary toprovide clearance between stems and their pockets or bearings inthebuifer beam.

By closely fitting the side buffer stems within the bearings I8 and I9,wear upon these parts is minimized.

The outer surface of the buer beam 3 is provided with recesses 25, oneof which, during swiveling of the buffer plate, receives the pivotedconnection between the link 2i and stern l i, the connection beinglarger than the stern. Positioning of the buffer plate on realignment ofthe adjacent vehicle is eiected by means of springs 12. The nuts ma,limit the outward movement of the buier plate. 'n

The flexible connection between the buffer plate and one of the sidebulier stems does not materially weaken the device, while at the sametime it substantially improves the yoperation thereof due to theelimination of binding between side buffer stems and "their bearings inthe bufier beam. The cylindrical stem pockets are obviously readilydrilled and machined and the provision of cylindrical Ybearings preventswearing of any part of the platform casting. The cylindrical bearings,while subject to only slight wear, are readily replaceable and vdue tothe close viit .of the stems in their bear-ingsthe stems will wearevenly on all sides. Obviously, square stems such as are in general usemay vbe'substituted for the round stems illustrated Aand substantialadvantages of the invention retained, but the round sections arepreferable'.

'Various details of the framing to which the 4buiilng device is appliedmay be modied with- Sout altering the advantageous results attained bythe invention and exclusive use of all such fmodications as come withinthe scope of the .appended claims is contemplated.

What is claimed is:

-1. A vehicle buing device comprising a buier -pl'atexhaving a pluralityof supporting stems projecting therefrom, and a link pivotallyconnecting one of said stems to said plate.

2; A vehicle buing device vcomprising a buffer plate, aside buffer stempivoted directly thereto near .one end, a link pivoted thereto near theother end and swingable horizontally only, and another side buffer stempivoted to said link vland supporting said plate Ythrough said link. Y

3. A vehicle bufling device comprising a Ybuier Aplate, a side bufferstem pivoted directly to said uplate near one' end, a linkpivoted tosaid plate fnear the other end thereof, andanother side buier stempivoted to said link.

"4. In a car end construction, a buier beam anda hurling device, saidbumng device having la front plate, andcenter and side stems of .round1crosssecticn, bushings in said buffer beam'iorming fbearings for saidstems, and a linkY p-ivoted to Atheouter end of one of said side stemsand flexibly vconnected to the front plate of said device.

: 5. In combination, a car underframe end construction including a buierbeam, and a buil-lng device comprising a buffer plate adjacent `saidbeam, side bufier stems pivotally connected with :said iplate andslidably mounted in said beam, rrelements yieldingly connecting vsaidstems with saidend construction, andra link-exibly connecting -lthegendof one of said stems and said plate whereby said plate may swivelrelative to said beam without causing transverse movement of said stems.

6. In a vehicle end construction, a buffer beam, and a bung deviceincluding a buffer plate adjacent said beam, bearings extending throughsaid beam, side and center buffer stems slidably mounted in saidbearings and closely fitting within the same, one ofsaid side stemsbeing pivoted directly to said plate, and a link pivotally connectingthe other side stem with said plate whereby said plate may swivelrelative to said beamrwithout Vcausing transverse movement of saidstems.

"7. In 'a vehicleend construction, a buier beam, and abutting devicecomprising a buffer plate adjacent said beam, cylindrical bearingsremovably'mounted in said beam, similarly shaped side and center bufferstems slidably mounted in said bearings and closely fitting within thesame, one of said side=stems=being `pi-voteddirectly to said plate, anda vlink pivotallylconnecting the other side stem with said plate wherebysaid platemay swivel relative to Asaid beam without causing transversemovementof said stems.

8. Y'In a vehiclefend constructioma buffer beam lhaving bearingstherein, and abutting device -including a buierplate, 'bu'fier'sidestems slidably lmountedin said bearings andclosely tting the same, oneof said stems being Vpivoted directly to said plate `near one end,an'd alink pivoted to said plate near the otherl end and connecting the other`side'stem thereto, the connection between said link and saidlatter-mentioned -stem being larger in diameterthan said stem, and theouter surface of said beam being recessed adjacent-said link to receivesaid connection Awhen the correspond- Yingstem is retracted.

9. iIn combination ina railway vehicle, a buffer beam,`anda'pocket-in-said beam-snugly receiving aY portion of said structure andresisting trans- 4verse 'movement thereof, said structure being ylaterally ilexible between said plate and said beam to permit swivelingof said plate.

1,0. A buing device for la railway vehicle comprising a'buiier plate,-meansabutting the same 'atfthe center thereof for resisting buiiingforces applied to said plate, and buffer vplate supporting devicesVpivoted'to said plate at the sides of said means, one of said devicesincluding apart for 'slidably cooperating with the vehicle buffer beamYand vlaterally exibl'e structure adjacent said L plate'to Vpermitswiveling of said plate.

l1. In 'combinatioma vehicle buiier'beam 'having'a pocket, abuffe'rplate adjacent said beam,

and a buffer platesupportin'g device including an Yelementlongitudinallyslidable in said pocketand snugly vtting the sameso asto beheld against`transverse movement'therein'and laterally flexible structure t'oaccommodate 'swivelingof said plate.

Y EINARVGL HALLQUIST. '65

